Switch



June 24, 1924. r 1,499,277

VV. A. VVH T SWITCH Filed Feb. 12, 1923 2 Sheets-Sheet 1 WITNESS:

IEJ/i. 2712a ATTORNEY June 24 1924.

W. A. WILT SWITCH Filed Feb. 12, 1923 2 Sheets-Sheet 2 e QQM k- ATTORNEY Patented June 24;, 1924.

UNITED STATES en rant oFIFicE.

WILLIAM A. WILT, or 'rrecnn, rnnNsYLvaNIa,

SWITCH.

Application filed February 12, 192s. Serial noieia'ese.

proach of the through train so that infornia tion can be given the engineer of such tram I that the track is free and he has the rightof-way. It not unfrequently happens that the flagman, after opening the switch to the siding fails to close the switch, with there sult that the through train runs on to the.

siding and collides with the train halted therein. In other instances, it has been found that the switch has not been fully thrown to open the main line which has resulted in disasters to the through train.

The object of this invention is to provide a simple, cheap and effective means controlled by the switch for making the telephone circuit at the point opposite the switch when the switch is thrown to open the main line and for breaking such circuit when the switch is thrown to open the siding.

The invention further resides in other fear tures of construction and in the combination and operative arrangement of elements to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing the invention in detail, reference is to be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a plan view showing a switch between the main and siding rails of arailway system and a telephone booth located at one side of the switch.

Figure 2 is a sectional view on the line 22 of Figure 1, showing the positionlof the circuit breaker when the switch is thrown to open the siding.

Figure 3 is a similar sectional view but showing the position of the circuit breaker 7 when the switch is thrown to open the main line.

the n m r l d gn te the ma n and. 2 the siding track ofv a' railway system. Between the rails of the main and siding there is the usual switch 3 having its points connected by a bridle bar to a throw. rod 4:. The

throw rod is operated in the usual manner by a weighted lever.v [At one side of the I switch thereis a telephone booth 5.

The wires from the telephone 6, in the present instance, lead directly to a circuit breaker 7 and from thence to'signal stations nearest the switch.

Ordinarily, when a freight train enters thesiding to make way for a through train the switch is thrown to open the main line, and the fiagman of the freight trainenters the booth and telephones to the signal station that his. train is in the siding and that the main line is free for the through train.

AS-PTEVIOUSTY stated, it has occurred whenthe flagman, before sendlng his'message, for

gets to throw the switch to open the main line, and in other instances the switch has not been fully thrown to open the main line.

Therefore I have, in the present instance either elongated or connected to the switch throw rod 4 an extension whose free end 18 pivotally secured to a bell cranklever 8 dis posed below the circuit breaker 7. The bell crank lever has connected to'it-s second arm a rod 9 which in turn is connected to the slidable element of the switch that constitutes the sliding element. of the circuit The throw rod 4, and the bell breaker. crank lever 8 are so proportioned that the switch must be fully thrown to open and of the invention will be readily apparent.

I desire it to be understood that I may make such changes in the combination and arrangement of parts as fall withinthe scope of what I claim.

Having described claim p The combination with a pair of switch points and an operating rod COIQllWl fid theme.

the invention, I

H ally connected with the bell crank lever and adapted to engage the fixed contacts to complete said circuit when the switch is in operative position, the weighted operating element serving to hold the movable contacts into positive engagement with the fixed contacts until the operating elements are swung to normal position.

In testimony whereof I afiix my signature.

WILLIAM A. WVILT. 

